SysBag Adapter Kit - 10/15/30/S/M/L Suitable for PRO side carriers, EVO side carriers, Adventure-Rack, and Street-Rack, The adapter plate with a quick lock system gives SysBag side bags secure support on side carriers and racks, Assembly of this adapter kit for its respective carrier is required, Includes four sets of retaining cams and mounting material, each suitable for one PRO side carrier, EVO side carrier or rack, Detailed mounting instructions describe which components are needed for which carrier, If you already have an EVO or PRO side carrier and want to switch to the SysBag system, replace the cam locks on it with this kit., ONE adapter kit is required PER carrier side.